CN216276829U

CN216276829U - Automatic protection scaffold

Info

Publication number: CN216276829U
Application number: CN202122533023.7U
Authority: CN
Inventors: 孟其帅; 石海军; 陈相月
Original assignee: Hebei Strategy Culture Media Group Co ltd
Current assignee: Hebei Strategy Culture Media Group Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-12
Anticipated expiration: 2031-10-21

Abstract

The utility model relates to the technical field of construction equipment, and particularly discloses an automatic protection scaffold which comprises a construction table, a protective guard and a lifting device, and is characterized in that anti-falling structures are further arranged on two sides of the construction table, each anti-falling structure comprises an anti-falling device fixed in the middle of the side face of the construction table and guide rails fixed on supporting structures on two sides of the construction table, a plurality of groups of guide wheels and at least one group of clamping wheels are arranged on each anti-falling device, the guide wheels and the clamping wheels slide along the guide rails in a reciprocating mode, and the clamping wheels are tightened inwards in a weightless state of the construction table and are in close contact with the guide rails to generate friction force for preventing the construction table from continuously descending. The utility model adopts the active anti-falling structure design, does not need personnel to carry out emergency operation when in accident, and can not lead the anti-falling device to lose efficacy due to overload, thereby greatly improving the autonomous safety of the scaffold.

Description

Automatic protection scaffold

Technical Field

The utility model relates to the technical field of construction equipment, in particular to an automatic protection scaffold.

Background

When the construction work and the maintenance work are carried out, the working personnel is required to carry out the high-altitude work, the high-altitude work has high danger, and therefore necessary protection auxiliary facilities are required to be adopted to protect the safety of the working personnel.

Aiming at the technical problems, the utility model provides an automatic protection scaffold, aiming at integrally preventing the occurrence of high-altitude falling accidents of the scaffold and improving the safety of the existing construction equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic protection construction frame, and aims to solve the problem of potential safety hazards in the prior art to a certain extent.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an automatic protection scaffold, includes construction platform, rail guard and elevating gear, its characterized in that, the construction platform both sides still are equipped with prevents weighing down the structure, prevent weighing down the structure including fixing the anti-falling device at construction platform side middle part, and fix guide rail on the support structure of construction platform both sides, be equipped with a plurality of groups guide pulley and at least a set of centre gripping wheel on the anti-falling device, the guide pulley with the centre gripping wheel is followed guide rail reciprocating sliding, the centre gripping wheel is in inwards tighten up under the weightless state of construction platform, with guide rail in close contact with produces the prevention construction platform continues the frictional force that descends.

In order to further optimize the technical scheme, the following embodiments are also provided as the preferable technical scheme of the utility model:

further, a set of the clamping wheels comprises: the two gear parts are rotationally connected to the anti-falling device, and the two eccentric wheel parts are positioned beside the gear parts and protrude towards the direction of the guide rail; two the eccentric wheel portion with the guide rail is crisscross, and two gear connection has the rack simultaneously in the middle of the gear portion, the rack passes through the elastic connection spare elastic connection of vertical direction and is in on the anti-falling device, the construction platform with the back fixed connection of rack.

Furthermore, the elastic connecting piece is located the anti-falling device back, the anti-falling device middle part is equipped with the via hole, the elastic connecting piece passes through the via hole with positive the rack connection.

Furthermore, the edge of the eccentric wheel part is provided with an anti-skid part protruding towards the outer edge, the middle of the anti-skid part is a plane, and the two ends of the anti-skid part are cambered surfaces.

Furthermore, construction direction one side fixed mounting of construction platform has the anti-falling groove, elastic buffer spare is mated formation to the anti-falling groove bottom.

Furthermore, the lifting device is provided with four groups, each group comprises a steel wire rope, a pulley block and a winding motor, one end of each steel wire rope is fixed on the construction platform, and the other end of each steel wire rope bypasses the pulley block and is wound on the winding motor.

Furthermore, a ceiling is arranged above the construction platform, the ceiling is fixedly connected with the construction platform through four support frames, the lifting device is located above the ceiling, and the tail end of the steel wire rope is fixed at the position where the support frames are connected with the ceiling.

Furthermore, a fence gate is arranged on the guard rail on the opposite side of the construction direction of the construction platform.

Compared with the prior art, the utility model has the overall technical effects that: through the setting of anti-falling device, the automatic protection security of scaffold has further been promoted, the shortcoming of current anti-falling device has been overcome simultaneously, the active structural design that prevents weighing down has been adopted, when taking place unexpectedly, need not personnel and promptly operate to can not make anti-falling device inefficacy because of overloading, on the contrary, the dead weight of scaffold is big more, anti-falling device's start is rapid more, can make the occlusal force increase of eccentric wheel portion and guide rail along with the increase of gravity moreover, and then has higher security.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a front view of a first embodiment of the present invention;

FIG. 2 is a right side view of a first embodiment of the present invention;

FIG. 3 is a top view of a first embodiment of the present invention;

FIG. 4 is a front view of the fall arrest device according to one embodiment of the present invention;

FIG. 5 is a rear view of the fall arrest device according to one embodiment of the present invention;

FIG. 6 is a front view of a second embodiment of the present invention;

FIG. 7 is a front view of the fall arrest device according to a second embodiment of the present invention;

FIG. 8 is a rear elevational view of the fall arrest device according to a second embodiment of the present invention; .

Wherein: 1-a construction table, 2-protective barriers, 3-a lifting device, 4-an anti-falling device, 5-a guide rail, 6-an anti-falling groove, 7-a ceiling, 31-a steel wire rope, 32-a pulley block, 33-a winding motor, 41-a guide wheel, 42-a clamping wheel, 43-a rack, 44-an elastic connecting piece, 45-a through hole, 421-a gear part, 422-an eccentric wheel part and 4221-an anti-sliding part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

referring to fig. 1 to 5, the first embodiment of the present invention provides the following implementation manners:

an automatic protection scaffold is a fence structure and is provided with a construction platform 1, a protective guard 2 and a lifting device 3, wherein the protective guard 2 is arranged above the construction platform 1 and is positioned at the position of a leg of a constructor, the height of the protective guard is 0.8m, the position of the protective guard which is not arranged above the construction platform is convenient for the constructor to carry out construction operation, and a gate is arranged on one side of the protective guard 2 to provide an access channel for the constructor to enter and exit and convey construction materials; the lifting device 3 is provided with four groups, each group comprises a steel wire rope 31, a pulley block 32 and a winding motor 33, one end of the steel wire rope 31 is fixed on the construction platform 1, and the other end of the steel wire rope is wound around the pulley block 32 and wound on the winding motor 33; the anti-falling structure is further arranged on two sides of the construction platform 1 and comprises an anti-falling device 4 fixed in the middle of the side face of the construction platform 1 and guide rails 5 fixed on supporting structures on two sides of the construction platform 1, the anti-falling device 4 vertically slides in a reciprocating mode along the guide rails 5 and is guided by a plurality of groups of guide wheels 41, the anti-falling device 4 further comprises at least one group of two clamping wheels 42, the two clamping wheels 42 are located on two sides of the guide rails 5 respectively and are the same as the guide wheels 41, a certain gap is kept between the clamping wheels 42 and the guide rails 5 when the construction frame is in normal operation, when the construction frame is suddenly weightless and falls down, the clamping wheels 42 are subjected to a downward pulling force of the construction frame, the two clamping wheels 42 are simultaneously rotated inwards and tightened to be in close contact with the side walls of the guide rails 5, and a friction force for preventing the construction frame from continuing to fall is generated;

in order to realize that the two clamping wheels 42 can be simultaneously tightened inwards in different rotating directions under the weightless state, each clamping wheel 42 comprises a gear part 421 and an eccentric wheel part 422, the gear part 421 and the eccentric wheel part 422 are tightly connected or integrally formed, the part of the whole clamping wheel 42, which can be in clamping contact with the guide rail 5, is only the eccentric wheel part 422, the two eccentric wheel parts 422 are staggered with the guide rail, the middle positions of the two gear parts 421 are simultaneously in gear connection with a rack 43, two edges of the rack 43 are respectively provided with gear patterns, the two gear parts 421 are respectively meshed with the two gear parts, and when the rack moves up and down, the two gear parts 421 are driven to rotate in opposite directions;

as a key component 43 for driving the two gear parts 421 to rotate, the two gear parts 421 are driven to rotate only under the condition of sudden dropping, so that the eccentric wheel part 422 contracts and clamps, therefore, an elastic connecting piece is arranged above the rack 43, and the rack is stably lifted upwards under the normal condition and elastically contracts to the highest position;

as the key component rack 43 driving the two gear parts 421 to rotate, a connecting part 431 connecting the scaffold, preferably the side surface of the construction platform 1, is further provided on the back surface thereof, since the functional structural part of the whole anti-falling device 4 faces one side of the guide rail 5, in order to connect the anti-falling device 4 to the side surface of the construction platform 1, the connecting part 431 of the rack 43 needs to penetrate through the anti-falling device 4 and extend to the back surface of the anti-falling device 4, a through hole 45 is preferably provided at the middle position of the anti-falling device 4, so that the connecting part 431 can penetrate through the through hole to be tightly connected with the construction platform 1, and meanwhile, the through hole 45 can accommodate the rack 43 to complete upward shrinkage and downward sliding, so that the through hole is an oblong hole in the up-down direction.

In order to further optimize the embodiment, the edge of the eccentric wheel portion 422 is provided with the anti-slip portion 4221 protruding towards the outer edge, the middle of the anti-slip portion 4221 is a plane, and the two ends are cambered surfaces, the anti-slip portion 4221 is provided to increase the contact area between the edge of the eccentric wheel portion 422 and the guide rail 5, so as to increase the friction force, and meanwhile, the anti-slip portion 4221 is made of wear-resistant anti-slip alloy materials, so that the service life can be prolonged.

In order to further optimize the embodiment, an anti-falling groove 6 is fixedly installed on one side of the construction direction of the construction platform 1, an elastic buffer part is paved at the bottom of the anti-falling groove 6, the purpose is to prevent tools from falling off during operation, so that tools or materials which fall off carelessly can fall into the anti-falling groove 6, and danger to personnel and property below a scaffold is avoided.

Example two:

referring to fig. 6 to 8, the second embodiment of the present invention provides the following implementation:

an automatic protection scaffold is a box structure and comprises a frame structure with a top, wherein the frame structure with the top is composed of a construction table 1, a protective guard 2 and a ceiling 7, and the construction table 1 and the ceiling 7 are in supporting connection through four supporting frames; the protective guard 2 is arranged above the construction platform 1 and is positioned at the position of the legs of the constructors, the height is 1m, the position of the upper part where no protective guard is arranged is convenient for the constructors to carry out construction operation, and one side of the protective guard 2 is provided with a guard gate to provide an access channel for the constructors to enter and exit and convey construction materials; the lifting device 3 is provided with four groups, each group comprises a steel wire rope 31, a pulley block 32 and a winding motor 33, one end of the steel wire rope 31 is fixed on the ceiling 7, and the other end of the steel wire rope is wound around the pulley block 32 and wound on the winding motor 33; the anti-falling structure is further arranged on two sides of the construction platform 1 and comprises an anti-falling device 4 fixed in the middle of the side face of the construction platform 1 and guide rails 5 fixed on supporting structures on two sides of the construction platform 1, the anti-falling device 4 vertically slides in a reciprocating mode along the guide rails 5 and is guided by a plurality of groups of guide wheels 41, the anti-falling device 4 further comprises at least one group of two clamping wheels 42, the two clamping wheels 42 are located on two sides of the guide rails 5 respectively and are the same as the guide wheels 41, a certain gap is kept between the clamping wheels 42 and the guide rails 5 when the construction frame is in normal operation, when the construction frame is suddenly weightless and falls down, the clamping wheels 42 are subjected to a downward pulling force of the construction frame, the two clamping wheels 42 are simultaneously rotated inwards and tightened to be in close contact with the side walls of the guide rails 5, and a friction force for preventing the construction frame from continuing to fall is generated;

as the key component of the rack 43 driving the two gear parts 421 to rotate, a connecting part 431 for connecting the scaffold, preferably the side surface of the construction platform 1, is further arranged on the back surface of the rack 43, and since the functional structural part of the whole anti-falling device 4 faces to one side of the guide rail 5, in order to connect the anti-falling device 4 to the side surface of the construction platform 1, the connecting part 431 of the rack 43 needs to penetrate through the anti-falling device 4 and extend to the back surface of the anti-falling device 4;

the safety brake system 4 of the present embodiment differs from the first embodiment in that the rack 43 extends downward beyond the main body of the safety brake system 4, so that the connecting portion 431 on the rear side can be connected to the installation platform 1 from below the safety brake system.

The ceiling 7 of this embodiment is designed, can protect constructor from the top, is applicable to building high altitude construction place more.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An automatic protection scaffold can be lifted up and down through supporting structures at two sides, and comprises a construction platform (1), a protective guard (2) and a lifting device (3), it is characterized in that two sides of the construction platform (1) are also provided with anti-falling structures, each anti-falling structure comprises an anti-falling device (4) fixed in the middle of the side surface of the construction platform (1), and a guide rail (5) fixed on the supporting structures at both sides of the construction table (1), a plurality of groups of guide wheels (41) and at least one group of clamping wheels (42) are arranged on the anti-falling device (4), the guide wheel (41) and the clamping wheel (42) slide along the guide rail (5) in a reciprocating manner, the clamping wheel (42) is tightened inwards under the weightless state of the construction table (1), closely contact with the guide rail (5), and generate the frictional force that prevents the construction platform (1) from continuing to descend.

2. A self-protection scaffold according to claim 1, wherein a set of said clamping wheels (42) comprises two gear portions (421) rotatably connected to said fall-preventing means (4), and two eccentric wheel portions (422) located beside said gear portions (421) and protruding in the direction of said guide rail (5); two eccentric wheel portion (422) with guide rail (5) are crisscross, and two gear connection has rack (43) simultaneously in the middle of gear portion (421), elastic connection spare (44) elastic connection through vertical direction of rack (43) is in on anti-falling device (4), construction platform (1) with the back fixed connection of rack (43).

3. An automatic protection scaffold according to claim 2, wherein said elastic connector (44) is located at the back of said anti-falling device (4), a through hole (45) is provided at the middle of said anti-falling device (4), said elastic connector (44) is connected with said rack (43) at the front through said through hole (45).

4. A self-protecting scaffold according to claim 2 or 3, wherein the edge of said eccentric portion (422) is provided with a non-slip portion (4221) protruding to the outer edge, the middle of said non-slip portion (4221) is a plane, and both ends are cambered surfaces.

5. An automatic protection scaffold according to claim 1, 2 or 3, wherein an anti-falling groove (6) is fixedly installed on one side of the construction direction of the construction platform (1), and an elastic buffer is paved on the bottom of the anti-falling groove (6).

6. An automatic protective scaffold according to claim 5, characterized in that said lifting means (3) are provided in four groups, each group comprising a wire rope (31), a pulley block (32) and a winding motor (33), said wire rope (31) being fixed at one end to said scaffold (1) and at the other end to be wound around said pulley block (32) and on said winding motor (33).

7. An automatic protection scaffold according to claim 6, characterized in that a ceiling (7) is arranged above the construction table (1), the ceiling (7) is fixedly connected with the construction table (1) through four support frames, the lifting device (3) is located above the ceiling (7), and the tail end of the steel wire rope (31) is fixed on the position where the support frames are connected with the ceiling (7).

8. An automatic protective scaffold according to claim 6 or 7, characterized in that the protective fence (2) at the opposite side of the construction direction of the construction platform (1) is provided with a fence gate.